Measurement of the branching ratio of (B)over-bar(0) -> D*(+)tau(-)(nu)over-bar(tau) relative to (B)over-bar(0) -> D*(+)l(-)(nu)over-bar(l) decays with a semileptonic tagging method

  • Sato, Y.
  • Iijima, T.
  • Adamczyk, K.
  • Aihara, H.
  • Asner, D. M.
  • ... Cheon, B. G.
  • 외 176명
Citations

WEB OF SCIENCE

257
Citations

SCOPUS

373

초록

We report a measurement of the ratio R(D*) = B((B) over bar (0) -> D*(+)tau(-)(nu) over bar (tau))/B((B) over bar (0) -> D*(+)l(-)(nu) over bar (l))where l denotes an electron or a muon. The results are based on a data sample containing 772 x 10(6) B (B) over bar pairs recorded at the Upsilon(4S) resonance with the Belle detector at the KEKB e(+)e(-) collider. We select a sample of B-0(B) over bar (0) pairs by reconstructing both B mesons in semileptonic decays to D*(-/+)l(+/-). We measure R(D*) = 0.302 +/- 0.030(stat) +/- 0.011(syst), which is within 1.6 sigma of the Standard Model theoretical expectation, where the standard deviation sigma includes systematic uncertainties. We use this measurement to constrain several scenarios of new physics in a model-independent approach.

키워드

IDENTIFICATION
제목
Measurement of the branching ratio of (B)over-bar(0) -> D*(+)tau(-)(nu)over-bar(tau) relative to (B)over-bar(0) -> D*(+)l(-)(nu)over-bar(l) decays with a semileptonic tagging method
저자
Sato, Y.Iijima, T.Adamczyk, K.Aihara, H.Asner, D. M.Atmacan, H.Aushev, T.Ayad, R.Aziz, T.Babu, V.Badhrees, I.Bakich, A. M.Bansal, V.Behera, P.Bhardwaj, V.Bhuyan, B.Biswal, J.Bonvicini, G.Bozek, A.Bracko, M.Cervenkov, D.Chang, P.Chekelian, V.Chen, A.Cheon, B. G.Chilikin, K.Chistov, R.Cho, K.Chobanova, V.Choi, Y.Cinabro, D.Danilov, M.Dash, N.Di Carlo, S.Dolezal, Z.Dutta, D.Eidelman, S.Epifanov, D.Farhat, H.Fast, J. E.Ferber, T.Fulsom, B. G.Gaur, V.Gabyshev, N.Garmash, A.Goldenzweig, P.Golob, B.Greenwald, D.Hara, K.Hara, T.Hasenbusch, J.Hayasaka, K.Hayashii, H.Hirose, S.Horiguchi, T.Hou, W. -S.Inami, K.Ishikawa, A.Itoh, R.Iwasaki, Y.Jaegle, I.Jeon, H. B.Joffe, D.Julius, T.Kang, K. H.Kato, Y.Katrenko, P.Kawasaki, T.Kim, D. Y.Kim, J. B.Kim, K. T.Kim, M. J.Kim, S. H.Kim, Y. J.Kinoshita, K.Kodys, P.Korpar, S.Kotchetkov, D.Krokovny, P.Kuhr, T.Kumar, R.Kwon, Y. -J.Lange, J. S.Li, C. H.Li, L.Li, Y.Gioi, L. LiLibby, J.Liventsev, D.Luo, T.Masuda, M.Matsuda, T.Matvienko, D.Miyabayashi, K.Miyata, H.Mizuk, R.Mohanty, G. B.Moll, A.Moon, H. K.Nakamura, K. R.Nakano, E.Nakao, M.Nanut, T.Nath, K. J.Natkaniec, Z.Nayak, M.Negishi, K.Nisar, N. K.Nishida, S.Ogawa, S.Okuno, S.Olsen, S. L.Onuki, Y.Pakhlov, P.Pakhlova, G.Pal, B.Park, C. -S.Paul, S.Pedlar, T. K.Pesantez, L.Pestotnik, R.Petric, M.Piilonen, L. E.Purohit, M. V.Rauch, J.Rostomyan, A.Rozanska, M.Sakai, Y.Sandilya, S.Santelj, L.Savinov, V.Schlueter, T.Schneider, O.Schnell, G.Schwanda, C.Schwartz, A. J.Seino, Y.Senyo, K.Seon, O.Sevior, M. E.Shebalin, V.Shen, C. P.Shibata, T. -A.Shiu, J. -G.Shwartz, B.Simon, F.Solovieva, E.Stanic, S.Staric, M.Strube, J. F.Sumiyoshi, T.Takizawa, M.Tamponi, U.Tenchini, F.Trabelsi, K.Uchida, M.Uno, S.Urquijo, P.Ushiroda, Y.Usov, Y.Van Hulse, C.Varner, G.Vinokurova, A.Vorobyev, V.Wang, C. H.Wang, M. -Z.Wang, P.Watanabe, Y.Williams, K. M.Won, E.Yamamoto, H.Yamaoka, J.Yamashita, Y.Yelton, J.Yook, Y.Yuan, C. Z.Yusa, Y.Zhang, Z. P.Zhilich, V.Zhukova, V.Zhulanov, V.Zupanc, A.
DOI
10.1103/PhysRevD.94.072007
발행일
2016-10
유형
Article
저널명
Physical Review d
94
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